package filter;

import bean.Admin;
import sun.misc.Request;

import javax.servlet.*;
import javax.servlet.annotation.WebFilter;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import java.io.IOException;
@WebFilter("/*")
public class studentFilter implements Filter {
    @Override
    public void init(FilterConfig filterConfig) throws ServletException {

    }

    @Override
    public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) throws IOException, ServletException {

        HttpServletRequest req=(HttpServletRequest)servletRequest;
        HttpServletResponse resp = (HttpServletResponse) servletResponse;
        HttpSession session = req.getSession();
        Admin admin = (Admin) session.getAttribute("admin");
        String url = req.getRequestURI();
        if (url.contains("login")){
            filterChain.doFilter(req,resp );

        }else {
            if(admin==null){
                resp.sendRedirect("login.jsp");
            }else {
                filterChain.doFilter(req,resp );

            }
        }

    }

    @Override
    public void destroy() {

    }
}
